Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the value of the digit 5 in the number 3.45?

Back

In the number 3.45, the digit 5 is in the hundredths place, which means it represents 5/100 or 0.05.

Front

What is the result of 9.43 − 3.34?

Back

6.09

Front

If an adult's ticket costs $5.75 and the total cost for two tickets is $9.50, how much does Nathan's ticket cost?

Back

$3.75

Front

What is the result of 43.03 − 12.82?

Back

30.21

Front

Which number has a 9 in the tenths place: 1.52, 1.96, 1.09, or 0.129?

Back

1.96

Front

How do you find the total of two decimal numbers?

Back

To find the total of two decimal numbers, add them together, ensuring to align the decimal points.

Front

What is the total number of hours Beth worked if she worked 33.25 hours last week and 23.75 this week?

Back

57 hours